Machine for finishing plow-beams



@No Model.)

W. e. MARGEDANT. MACHINE POR FINISHING PLOW'BBAMS. N0. 322,838.

Il! l I Il!! UHIIIIIIP Patented July 21, 1885.

NITED STATES iATENT OFFICEG TILLIAM O. MABGEDANT, OF HAMILTON, OHIO, ASSIGNOB TO THE ECON MIST PLOW COMPANY, OF SOUTH BEND, INDIANA.

MACHINE FOR FINISHING PLOW-BEMS.

SPECIFICATION forming part of Letters Patent No. 322,838, dated July 21, 1885. y

Application filed June 11, 1884. (No model.) Y

To a/ZZ whom t may concern:

Be it known that I, WILLIAM C. MARGE- DANT, of Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Machines for Finishing Plow-Beams, of which the following is a specification.

This invention relates to a machine for sandpapering plow-beams after they have been properly formed. 1

The improvements will be understood from the following description,taken in connection with the accompanying drawings, in which- Figure I is a plan of a machine embodying my improvements; and Fig. 2, a side elevation of the same.

In the drawings, A represents a longitudinal frame structure; B, a horizontal frame located above the frame A and arranged to oscillate upon a pivot-shaft which supports its rear end; C, a platen or table upon the top of the machine provided with a longitudinal groove in its top, the table being in practice composed, as shown, of two strips secured to the top of the machine and located a slight distance apart, the strip nearest the spectator in Fig. 2 being omitted; D, an endless feed belt or chain driven by suitable Wheels and lying in the table-groove, and presenting feeding-projections above the level of the table; E, a sand-wheel upon a vertical axis, so located as to operate upon the side of aplow-beam moving along upon the table; F, a housing pivoted to the frame-work of the machine, the pivotal axis being arranged vertically; G, a sand-wheel arranged similarly to the sandwheel E, but oppositely disposed with reference to the table, and supported in the pivoted housing F; H, an eccentric-shaft lying across the machine below the spindles of the two sand-wheels mentioned; I, the axis of the pivoted housing F; J, eccentrics upon the shaft H, connected by suitable eccentric-rods with the step-boxes of the spindles of the two vertical sand-wheels; K, a sand-wheel upon a horizontal shaft journaled in the front end of the pivoted frame B; L, a cam-shaft carried by the pivoted frame B; M, acam upon the shaft L; N, a pivot-lever receiving vibratory motion from the cam M and imparting a reciprocating motion to the sand-wheel K; O, the heel-shaft of the pivoted frame B, on which that frame is pivoted.

'The machine is provided with shafting and belts, by which motion is properly transmitted to the various parts,as will be hereinafter more fully described.

Plow-beams have one or more tapers alongV their length, and it is the purpose of this machine to sand-paper such beams regardless of the lack of parallelism of the various faces. The lower surfaces of plow-beams are not to be sand-papered,and they are supposed to be so formed as not to be in wind with the other surfaces.

In the operation of the machine the plowbeams are started endwise upon the table at the left-hand end of the machine, and the projections of the feed-chain, catching upon the rear end of the beam, propel it along to the right upon the table between the two vertical sand-wheels and under the sand-wheel K. The vertical sand-wheels nish the two sides of the plow-beam and the sand-wheel K finishes the top of the beam. 'Ihepivoted housing F, which carries the sand-wheel G, permits the distance between the two vertical sand-wheels to be adjusted to suit the width ofthe plowbeams. The eccentrics J serve to vertically reciprocate the two vertical sand-Wheels, and thus prevent the sand-streaking of the surfaces of thed work. rIhe sand-wheel K rises and falls to accommodate itself to the variation in the top surfaces of the plow-beams passing below it. It is desirable that the pivoted frame B be counterbalanced to avoid excessive downward tendency upon the part of the sandwheel K. The cam M, through the lever N, serves to laterally reciprocate the sand-wheel- K, and thus avoids the streaking of the top surfaces of the work.

The transmitting mechanism will be briey described in connection with 'the drawings.

The shaft O receives motion from factory line-shaft or other motor shaft. Belt on pulleys P and Q drives horizontal sand-wheel.

R is a cross shaft journaledin the machineframe, and serving, through belt on pulleys S and T, to drive the vertical sand-wheels. Belt on pulleys U and V imparts motion to the shaft R.

V and X are the shafts of the wheels which drive the feed-chain. Belt on pulleys Y and Z serves to drive the eccentric-shaft H.

a is a receiving-pulley on the shaft O; b, a Worm-gear through which shaft R transmits motion to a longitudinal shaft arranged below it.

c is a spur-gear on the shaft XV, which receives motion from the shaft l through the medium of gearing e and f.

By vertical7 Wheel in this specification is meant a wheel Whose axis is vertical, and by horizontal wheel one Whose axis is hori zontal.

I claim as my invention In a plow-beam finishing-machine, the oombination of a Work-supporting table, a feedehain provided with feeding projections presenting above the level of said table, a sand- Wheel arranged upon a vertical axis at the side of the table, a second sand-Wheel similarly arranged and tted to be adjusted With reference to the irst sand-wheel, and a frame pivoted upon a horizontal axis and armed at its free end with a horizontal sand-wheel located above the table and adapted to have its height regulated by the object which it operates upon7 substantially as set forth WVM. C. MARGEDANT.

Vitnesses:

WV. A. SEWARD, J. WV. SEE. 

